* Convert to use t_vertex.c instead of sis_vb.[ch]

* Don't dispatch vertices directly to MMIO; queue them up in dma-like buffers
  first.  This makes things more uniform between AGP and MMIO paths, cleans up
  some locking ugliness, and makes the driver look more like other drivers.
* Don't use the AGP Cmd buffer provided by the server.  Instead allocate one in
  the client, which avoids the need for lots of synchronization stuff.
* Mark some MMIO accesses volatile that should have been.
* Disable the AGP submission path by default (agp_disable=true) due to
  unresolved issues in the new code.  The old code had its own (serious) errors
  with AGP, so this is not really a step backwards.

1 files changed, 20 insertions, 19 deletions

diff --git a/src/mesa/drivers/dri/sis/sis_context.h b/src/mesa/drivers/dri/sis/sis_context.h
index cc35c02872..0ea2e2a59a 100644
--- a/src/mesa/drivers/dri/sis/sis_context.h
+++ b/src/mesa/drivers/dri/sis/sis_context.h
@@ -40,6 +40,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "drm.h"
 #include "drm_sarea.h"
 #include "xmlconfig.h"
+#include "tnl/t_vertex.h"
 
 #include "sis_screen.h"
 #include "sis_common2.h"
@@ -237,18 +238,26 @@ struct sis_context
   /* This must be first in this structure */
   GLcontext *glCtx;
 
+  /* Vertex state */
+  GLuint vertex_size;
+  struct tnl_attr_map vertex_attrs[VERT_ATTRIB_MAX];
+  GLuint vertex_attr_count;
+  char *verts;			/* points to tnl->clipspace.vertex_buf */
+
+  /* Vertex buffer (in system memory or AGP) state. */
+  unsigned char *vb;		/* Beginning of vertex buffer */
+  unsigned char *vb_cur;	/* Current write location in vertex buffer */
+  unsigned char *vb_last;	/* Last written location in vertex buffer */
+  unsigned char *vb_end;	/* End of vertex buffer */
+  void *vb_agp_handle;
+  GLuint vb_agp_offset;
+  GLboolean using_agp;
+
   GLuint NewGLState;
   GLuint Fallback;
-  GLuint SetupIndex;
-  GLuint SetupNewInputs;
   GLuint RenderIndex;
   GLfloat hw_viewport[16];
   GLfloat depth_scale;
-  GLuint vertex_size;
-  GLuint vertex_stride_shift;
-  GLuint vertex_format;
-  GLuint num_verts;
-  GLubyte *verts;		
 
   unsigned int virtualX, virtualY;
   unsigned int bytesPerPixel;
@@ -288,15 +297,6 @@ struct sis_context
   unsigned char *AGPBase;
   unsigned int AGPAddr;
   
-  /* AGP Command Buffer */
-  /* TODO: use Global variables */                                                                                
-
-  unsigned char *AGPCmdBufBase;
-  GLint AGPCmdBufAddr;
-  unsigned int AGPCmdBufSize;
-  GLint *pAGPCmdBufNext;
-  GLboolean AGPCmdModeEnabled;
-
   /* register 0x89F4 */
   GLint AGPParseSet;
 
@@ -313,6 +313,7 @@ struct sis_context
   GLboolean blockWrite;
 
   GLint GlobalFlag;
+  GLuint last_tcl_state;
 
   /* Stereo */
   GLboolean useStereo;
@@ -382,7 +383,7 @@ struct sis_context
 
 #define MMIO(reg, value) \
 {\
-  *(GLint *)(GET_IOBase(smesa) + (reg)) = value; \
+   *(volatile GLint *)(smesa->IOBase + (reg)) = value;			\
 }
 
 #define MMIO_READ(reg) *(volatile GLint *)(smesa->IOBase + (reg))
@@ -390,8 +391,8 @@ struct sis_context
 
 #define mEndPrimitive()  \
 {       \
-  *(GET_IOBase(smesa) + REG_3D_EndPrimitiveList) = 0xFF;   \
-  *(GLint *)(GET_IOBase(smesa) + 0x8b60) = (GLint)(-1); \
+   *(volatile char *)(smesa->IOBase + REG_3D_EndPrimitiveList) = 0xFF;	\
+   *(volatile GLint *)(smesa->IOBase + 0x8b60) = (GLint)(-1);		\
 }
 
 #define sis_fatal_error(msg)						\